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authorHans Verkuil <hverkuil@xs4all.nl>2008-08-08 08:34:19 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-10-12 09:36:48 -0200
commit1e55126666944c83bf98243564e25302f363e2a4 (patch)
treedd86e6c7cb97d5fd49f739dffe42cf7666e7332b /include/media/v4l2-common.h
parent69028d7096a6092812f0482833f0820593f1cafd (diff)
downloadlinux-1e55126666944c83bf98243564e25302f363e2a4.tar.bz2
V4L/DVB (8637): v4l2: add v4l2_ctrl_query_menu_valid_items support function
v4l2_ctrl_query_menu_valid_items() makes it easy to handle control menus that have a lot of invalid 'holes'. For example, many MPEG encoders only support a limited subset of audio bitrates. In that case a driver can specify an array listing the set of valid bitrates and pass that to this function. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media/v4l2-common.h')
-rw-r--r--include/media/v4l2-common.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index 8b678e0d46e3..0c195ccd45d2 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -82,6 +82,8 @@ int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 ste
int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl);
int v4l2_ctrl_query_menu(struct v4l2_querymenu *qmenu,
struct v4l2_queryctrl *qctrl, const char **menu_items);
+#define V4L2_CTRL_MENU_IDS_END (0xffffffff)
+int v4l2_ctrl_query_menu_valid_items(struct v4l2_querymenu *qmenu, const u32 *ids);
u32 v4l2_ctrl_next(const u32 * const *ctrl_classes, u32 id);
/* ------------------------------------------------------------------------- */